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Marudut Bernadtua Simanjuntak

5ekolah Tinggi Ilmu Pelayaran Jakarta

Author-ID : 3471872

Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Neuroscience Nursing Physics Public Health Social Sciences Transportation Other

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Standardized Marine Communication Proficiency Among Deck Officers: A Competency-Based Assessment of SMCP Implementation Under STCW Convention Frameworks Marudut Bernadtua Simanjuntak; Chanra Purnama; Irfan Faozun
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 2 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i2

Maritime communication failures remain a critical contributor to navigational accidents globally, yet the extent to which the IMO Standard Marine Communication Phrases (SMCP) are effectively implemented within maritime education institutions — particularly in major seafarer-supplying nations — remains underexplored. This study examines SMCP proficiency among deck officers and cadets at Indonesian maritime institutions through a competency-based assessment aligned with the STCW Manila Amendments. Using a mixed-methods design incorporating a validated four-domain proficiency rubric, structured questionnaires, and semi-structured interviews with 120 participants drawn from maritime educators, deck officer cadets, and certified officers, the study identifies a systematic proficiency gap between institutional training outcomes and STCW-mandated communicative standards. Results indicate that the majority of cadets perform at the Developing level, with particularly pronounced deficiencies in Distress and VTS Communication domains. Qualitative findings attribute this gap to the dominance of declarative instructional approaches, limited simulator access, and insufficient integration of communicative simulation in curriculum design. The study contributes a validated assessment framework and contextually grounded findings with direct implications for maritime curriculum reform, STCW quality assurance, and seafarer safety in Indonesia.

Technical Language Barriers and Engineering Communication Challenges Among Marine Engine Officers: Implications for STCW Certification and Onboard Safety Performance Marudut Bernadtua Simanjuntak; Ardiansyah; Natanael Suranta
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 2 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i2

The engine room represents one of the most technically demanding and communicatively complex environments in maritime operations, yet engineering communication among marine engine officers remains substantially underexplored relative to the well-documented study of bridge communication. This study investigates technical language barriers and engineering communication challenges among marine engine officers within Indonesian maritime institutions, examining their implications for STCW certification outcomes and onboard safety performance. Using a mixed-methods design incorporating a validated technical communication assessment rubric, structured questionnaires, and semi-structured interviews with 115 participants comprising marine engineering educators, engineering cadets, and certified engine officers, the study identifies a pronounced proficiency deficit in machinery-related technical language, particularly in watch handover protocols and emergency engineering communication. Quantitative findings reveal that engineering cadets achieve an overall mean proficiency score of 2.05 on a four-point scale aligned with STCW Chapter III competency standards, falling within the Developing range across all four communication domains assessed. Qualitative analysis attributes this deficit to the dominance of Bahasa Indonesia as the medium of technical instruction, the absence of engineering-specific communication simulation, and a systemic disconnect between language training and technical training programs. The study contributes a theoretically grounded assessment framework specific to engine room communication and advances evidence-based recommendations for curriculum integration, simulator-based pedagogy, and regulatory quality assurance in Indonesian maritime engineering education.

Evieta-Based Learning Material in English Business Class: Students’ Perceptions: (Study Case Taken From Vocational School – IPB University) Irma Rasita Gloria Barus; Marudut Bernadtua Simanjuntak
Seltics Journal: Scope of English Language Teaching Literature and Linguistics Vol 3 No 2 (2020) Seltics Journal: Scope of English Language Teaching, Literature and Linguistics Jo
Publisher : Program Studi Pendidikan Bahasa Inggris FKIP Universitas Muslim Maros

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46918/seltics.v0i0.695

The purpose of this study is to test students' perceptions of using Evieta-based learning in Business English classes at the Vocational School - IPB University, Bogor. The study was prepared by lecturers as authors of the article for the multimedia learning system used. The data comes from questionnaires on how students perceive implemented learning using the Likert scale. The scoring system performed recommended and non-recommended points. The data were analyzed descriptively using a scoring table from 1 to 100, which is intended to represent the students' views or opinions. The results of this study, which focus on study materials for the English Business class, show that there is a consensus among students that this learning-based learning is effective when applied and applied. The average perception score is 87, indicating six elements of the product (comfort, content, efficient use, language, clarity, and enjoyment).

English Reading Literacies to Improve Values Among Teenagers: (Study Case Taken in North Jakarta) Marudut Bernadtua Simanjuntak; Irma Rasita Gloria Barus
Seltics Journal: Scope of English Language Teaching Literature and Linguistics Vol 3 No 2 (2020) Seltics Journal: Scope of English Language Teaching, Literature and Linguistics Jo
Publisher : Program Studi Pendidikan Bahasa Inggris FKIP Universitas Muslim Maros

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46918/seltics.v0i0.734

People with high levels of literacy usually have low crime rates and high intelligence. It is expected that the school community itself will happen in the school environment like teachers and students. The purpose of this research is to collect information on the learning styles and preferences of young junior high school students who are curious and critical. It is very useful to cultivate interest in reading English literature books in order to increase the cultural and social value of students who intend to apply for school literacy campaigns. The reading literacy development model used is the Plomp model: preliminary research, prototyping and evaluation. Science books such as textbooks recommended by the Cambridge Courses may have a major and popular impact because they can increase their value in various courses that use English. Educators are expected to use related books in their learning and lead the school's reading and writing movement. The result of validation of teaching materials indicates that reading literacy material with the use of English-language publications is important and can be tested.

Multicultural Crew Communication Challenges and SMCP Utilization in Mixed-Nationality Shipboard Environments: A Qualitative Study Among STIP Jakarta Graduates Suhartini Suhartini; Renta Novaliana Siahaan; Marudut Bernadtua Simanjuntak
Proceeding International Collaborative Conference on Multidisciplinary Science Vol. 3 No. 1 (2026): June : ICCMS (Proceeding International Collaborative Conference on Multidiscipl
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70062/iccms.v3i1.215

The Standard Marine Communication Phrases are designed to provide a shared communicative framework for multinational seafaring crews, yet the adequacy of SMCP training in preparing graduates for the actual linguistic and cultural complexity of mixed-nationality shipboard communication environments remains empirically underexamined from the perspective of those who have experienced both the institutional training and the real-world professional context it is intended to prepare them for. This study investigates multicultural crew communication challenges and SMCP utilization patterns through a qualitative inquiry involving STIP Jakarta graduates currently serving in mixed-nationality shipboard environments, SMCP lecturers, and shipping company safety and communication managers. Data were collected between April 2025 and April 2026 from twenty-seven participants across these three groups through focus group discussions and semi-structured interviews. Thematic analysis, cross-group comparison, and narrative synthesis were applied. Findings reveal that STIP Jakarta graduates experience four categories of post-training communicative challenge in mixed-nationality environments: SMCP deviation toward informal English, authority-gradient communication suppression, native speaker assumption disadvantage, and SMCP phrase non-recognition among non-training recipients such as non-STCW crew categories. Graduates' retrospective assessment of STIP Jakarta's SMCP training as adequate for exam performance but insufficient for multicultural communicative reality constitutes the study's central cross-group finding and provides the most direct evidence for curriculum reform. The study contributes a graduate-grounded, post-training account of SMCP multicultural communication challenge that institutional-level curriculum assessment cannot supply.

Marine Engineering Innovation for Environmental Compliance: An Integrated Environmental Engineering Framework for Indonesian Domestic Vessel Operations Susi Herawati; Marihot Simanjuntak; Larsen Barasa; Natanael Suranta; Marudut Bernadtua Simanjuntak
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 2 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i2

Marine engineering is undergoing a fundamental redefinition — from a discipline optimized primarily for propulsive performance and fuel economy to one in which environmental engineering is integral to every shipboard system domain. This study develops an Integrated Environmental Engineering Framework (IEEF) for Indonesian domestic vessel operations, synthesizing marine engineering innovation literature across propulsion, thermal management, exhaust treatment, waste management, and hull systems into a structured, evidence-based environmental technology portfolio. A mixed-methods methodology was employed, combining quantitative Environmental Engineering Audit Protocol (EEAP) assessment of 72 Indonesian domestic vessels across 10 MARPOL-relevant engineering domains with AHP-TOPSIS multi-criteria technology assessment involving 24 domain experts. The audit reveals critical compliance gaps in CII monitoring systems (36%), waste heat recovery installation (10%), and eco-compliant antifouling coatings (35%), alongside high-severity deficits in NOₓ treatment (42%), sewage treatment (44%), and ballast water management (50%). AHP-TOPSIS ranking identifies waste heat recovery and CII digital monitoring as equal top-priority investments (composite score 0.83), followed by nano-hybrid antifouling (0.79), Annex IV sewage treatment (0.77), SCR/EGR NOₓ reduction (0.72), and LNG dual-fuel conversion (0.68). The IEEF organizes these priorities within a three-horizon implementation roadmap — Horizon 1 (2025–2027) deploying proven compliance technologies, Horizon 2 (2027–2032) advancing NOₓ reduction and hybrid system integration, and Horizon 3 (2032–2050) transitioning toward hydrogen, ammonia, fuel cell propulsion, and on-board carbon capture — providing a structured engineering trajectory aligned with IMO 2050 net-zero ambition.

Eco-Friendly Antifouling Coating Technologies for Marine Vessels: Material Science Advances and Environmental Compliance Under IMO Regulations Tri Cahyadi; Marihot Simanjuntak; Natanael Suranta; Larsen Barasa; Marudut Bernadtua Simanjuntak
International Journal of Marine Engineering Innovation and Research Vol. 11 No. 2 (2026)
Publisher : Department of Marine Engineering, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v11i2

Marine biofouling — the progressive accumulation of microorganisms, algae, barnacles, and other aquatic organisms on submerged vessel hull surfaces — imposes a 25–40% fuel consumption penalty at the macrofouling stage and simultaneously facilitates the transport of non-indigenous invasive species across biogeographic barriers, constituting both a significant GHG emission driver and a global ecological threat. This study examines antifouling coating technology adoption and compliance in the Indonesian domestic fleet, evaluates alternative antifouling technologies against environmental performance, fuel saving benefit, and IMO regulatory compliance dimensions under Indonesian tropical operating conditions, and develops prioritized technology adoption and regulatory implementation recommendations. A mixed-methods design was employed, combining hull inspection and documentary review of 84 domestic vessels across four vessel type categories at three Indonesian port areas, stakeholder interviews with 46 participants across operator, shipyard, regulatory, industry, and NGO groups, and comparative technology performance assessment of four antifouling system categories. Results reveal that while 86% of vessels achieve AFS Convention (TBT prohibition) compliance, only 6.5% fully comply with IMO Biofouling Management Guidelines. A full fleet eco-upgrade across the 84-vessel sample would deliver annual fuel savings of 12,980 tonnes HFO and 40,500 tonnes CO₂ at a positive 15-year fleet NPV of USD 16.6 million. Cost barriers — with eco-friendly coatings carrying a 2–4× unit price premium — are identified as the primary adoption constraint. Three priority policy recommendations are proposed: mandatory Biofouling Management Plan documentation for all vessels exceeding 400 GT; a green maritime financing facility for eco-coating upgrades during drydocking; and mandatory hull fouling performance reporting within the CII monitoring framework.

Green Fleet Management Strategy and Operational Sustainability: A Stakeholder Analysis of Indonesian Shipping Company Decarbonization Readiness Renta Novaliana Siahaan; Suhartini Suhartini; Marudut Bernadtua Simanjuntak
Proceeding International Collaborative Conference on Multidisciplinary Science Vol. 3 No. 1 (2026): June : ICCMS (Proceeding International Collaborative Conference on Multidiscipl
Publisher : International Forum of Researchers and Lecturers

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70062/iccms.v3i1.222

Indonesian shipping companies face mounting pressure to align their fleet management strategies with the International Maritime Organization's 2023 Revised GHG Strategy, yet the organizational readiness and strategic capability through which these companies are actually responding to decarbonization imperatives remain empirically underexamined. This study investigates green fleet management strategy and operational sustainability readiness among Indonesian shipping companies through a qualitative stakeholder analysis involving fleet managers, Designated Persons Ashore, and maritime management graduates. Data were collected through semi-structured focus group discussions and interviews with twenty-four participants between April 2025 and April 2026. Thematic analysis, cross-group comparison, and narrative synthesis were applied. Findings reveal three dominant strategic orientations—compliance-reactive, compliance-proactive, and sustainability-integrated—distributed unevenly across company size and fleet type segments, with the majority of participants' companies occupying the compliance-reactive orientation. Inter-departmental coordination deficits and the absence of dedicated sustainability management functions within most company organizational structures constitute the primary organizational barriers to advancing toward sustainability-integrated fleet management. The study contributes a stakeholder-grounded typology of green fleet management strategic orientation within the Indonesian shipping sector and provides actionable recommendations for company governance reform and STIP Jakarta's maritime management curriculum development.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.70062/iccms.v3i1.224

Optimizing Maritime Supply Chains: Enhancing Network Efficiency, Process Innovation, and Sustainable Logistics Management in Sea Transportation Suhartini Suhartini; Marudut Bernadtua Simanjuntak
Fundamental and Applied Management Journal Vol. 4 No. 1 (2026): March
Publisher : Global Research Collaboration

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66314/famj.v4i1.275

Maritime supply chains are increasingly under pressure to improve operational efficiency, reduce environmental impact, and adapt to fluctuating global trade conditions. However, existing frameworks for optimization often fall short in integrating network-level analysis with sustainability goals and process improvement initiatives. This study explores the optimization of maritime supply chains through a comprehensive analysis of network structure, operational efficiency, process innovation, and sustainable logistics practices. Using a qualitative research approach that includes thematic analysis, cross-group comparisons, and narrative synthesis, the research draws on insights from maritime logistics operators, supply chain strategists, sustainability experts, and academics. Key findings highlight four main themes: the multi-layered structure of maritime supply chain networks and the factors influencing their efficiency, the role of process innovation and digital transformation in enhancing logistics operations, the challenges of incorporating sustainability into supply chain optimization, and the governance mechanisms needed to balance efficiency with resilience and environmental responsibility. This study presents an integrated framework for optimizing maritime supply chains, linking network efficiency, process innovation, and sustainability governance, providing valuable theoretical insights and actionable recommendations for maritime stakeholders navigating the complexities of modern global sea transportation logistics.

Co-Authors ace, Wildatussholiha Ridwana Aceng Rahmat Aceng Rahmat, Aceng Achmad Ali Mashartanto Agus Santoso Ahmad Wahid Ahmad Wahid Aji Permana Aji Permana, Aji Ala, Asman Alamsyah, Jaya Albert Gamot Malau Amelia Hafizhah Ningrum Amos Neolaka Anastasya Putri Aziza Angel Agustin Darmawan April Gunawan Malau April Gunawan Malau April Gunawan Malau Ardiansyah Ardiansyah Arika Palapa Audry Putri Callista Baihaqi Baihaqi Bambang Kurniadi Bambang Sumali Barlan Izzulhaq Bayu Yudho Baskoro Bobby Kurnia Putrawan Cahyani Dara Chanra Purnama Christiani Hutabarat Cris Kuntadi Damoyanto Purba Damoyanto Purba Dea Agetia Noviana Dea Bella Indriani Dea Bella Indriani Delfina Fatihayah Derma Watty Sihombing Diah Zakiah Dielarenza Destelita Wahana Putri Endry Boeriswati Erina Wachidatul Insani Erina Wachidatul Insani Fahmi Umasangadji Fahmi Umasangaji Fakhirah Nur Inayyah Grace Abeliani Saragih Guntoro , R. Herlan Hana Zhafira Maulita Hana Zhafira Maulita Ida Ayu Putu Sri Widnyani Ifan Iskandar Ilza Mayuni Ilza Mayuni Ira Resmayasari Irene Evi Krismawati Irfan Faozun Irfan Faozun Irma Rasita Gloria Barus Jan Hotman Malau Jasmine Nurkamila Jasmine Nurkamila Larsen Barasa Larsen Barasa Larsen Barasa Larsen Barasa Lumingkewas, Martin Steven Manurung, Markus Yando Marihot Simanjuntak Marihot Simanjuntak Marihot Simanjuntak Markus Yando Marthin Steven Lumingkewas Martin Steven Lumingkewas Mauritz Sibarani Meilinasari Nurhasanah Hutagaol Melinasari Nurhasanah Hutagaol Meriyanti Agustinawati Mohammad Rafi Mustaqim Mohammad Rafi Mustaqim Muchlas Suseno Mudakir Mudakir Mudakir Mudakir Mudakir Mudakir Mudakir, Mudakir Muhammad Fachruddin Raihan Muhammad Nurdin Muhammad Zidan Natanael Suranta Natanael Suranta Nazilul Hamidi Nidia Sulistyowati Ninuk Lustyantie Nur Intan Permatasari Panderaja Soritua Sijabat Prima Danti Aulia Purba, Damoyanto Ramadhan Hasri Harahap Ramdhoni Ramdhoni Ramdhoni, Ramdhoni Reindy Aziqar Pasya Reindy Aziqar Pasya Renta Novaliana Siahaan Retno Sawitri Wulandari Retno Sawitri Wulandari Reza Noprial Lubis Riyanto Riyanto Riyanto Riyanto Riyanto Riyanto Riyanto Rizal Rochmansyah Rizal Rochmansyaha Romdani Romdani Romdani, Romdani Ronald Simanjuntak Rosna Yuherlina Rosna Yuherlina Siahaan Roza Khairani Samsi Setiadi Samuel Ricardo Sergius Lay Sibarani, Mauritz Sihombing, Derma Watty Sijabat, Panderaja Simanjuntak, Marihot Simanjuntak, Ronald Simanjuntak, Ronald Siti Naharani Fauziah Siti Naharani Fauziah Suhartini Suhartini Suhartini Suhartini Suhartini Suhartini Suhartini Suhartini Suhartini Suhartini Sursina Susi Herawati SUTRISNO Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno Sutrisno, Sutrisno Syafa Zhafira Putriyanda Taufiq Muntaz Titis Ari Wibowo Tri Cahyadi Tri Cahyadi Tri Cahyadi Utami, Sintowati Rini Vanessa Meuti Vanessa Meuti Wardoyo Dwi Kurniawan Wibowo, Titis Ari Wildatussholiha Ridwana ace Winarno Winarno Winarno Winarno Winarno Winarno Winarno Winarno Yayu Nopriani Martha Yoniessa, Siska Zainal Rafli, Zainal Zuriyati Zuriyati Zuriyati Zuriyati

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